Just curious how you all are holding the phone when you type on it. It's actually as easy as I thought it'd be, particularly in portrait. I never feel like I have a good grasp of the phone.
I tried typing on a plus in the store today, in landscape and couldn't do it. I have a plus on pre-order so I could only drool on the displays today, but yeah, I won't be able to type on it except for portrait which was ideal for me.
I've found that typing in portrait mode with two hands is the fastest and most comfortable.
Typing in landscape mode is weird because the keyboard feels too far in the center and my thumbs are a bit strained. I wish I could use swiftkey but it's too much distance for the thumb to travel around that two handed is still faster.
I leaning towards the smaller one if I can't get used to this after a week.